Cystiscus caeruleus F. Boyer, 2003 New Caledonia
Persicula calculus (J.H. Redfield, 1870) Grenada10,6 mm
Crithe caledonica F. Boyer, 2003 New Caledonia1,9 mm
Persicula calhounensis (FOSSIL) C.J. Maury, 1910 † United States, Florida, Calhoun
Cystiscus camelopardalis F. Boyer, 2003 New Caledonia1,3 mm
Persicula canaryensis (P.W. Clover, 1972) Western Sahara, Capo Barbas16,2 mm
Gibberula candida T. Cossignani, 2008 Philippines, Mactan Island7,7 mm
Gibberula caribetica J. Espinosa & J.A. Ortea,2002 Costa Rica, Manzanillo6 mm
Cystiscus carinifer A. Wakefield& T. McCleery, 2005 Tuamotu1,5 mm
Pachybathron cassidiforme J.S. Gaskoin, 1853
Gibberula catenata (G. Montagu, 1803) Bahamas5 mm
Gibberula cavernicola J. Espinosa & J.A. Ortea,2007
Gibberula cavinae T. Cossignani& I. Perugia, 2010 Madagascar, Lavanono3,15 mm
Gibberula celerae T. McCleery, 2008 Venezuela, Isla Coche2 mm
Persicula cercadensis (FOSSIL) C.J. Maury, 1917 † Valverde, Dominican Republic
Gibberula cherubini (A.R.J.B. Bavay, 1922) Seychelles3,6 mm
Gibberula chiarae L. Bozzetti& T. Cossignani, 2009 Madagascar, Lavanono4 mm
Gibberula chondra (FOSSIL) J. Gardner, 1937 † United States, Florida, Calhoun
Persicula chrysomelina (J.H. Redfield, 1848) Bahamas4 mm
Gibberula chudeaui (A.R.J.B. Bavay in P. Dautzenberg, 1910) Mauritania4 mm
Gibberula cincta F. Boyer, 2003 New Caledonia4 mm
Plesiocystiscus cinereus (F.P. Jousseaume, 1875) West Indies
Persicula cingulata (L.W. Dillwyn, 1817) Senegal, Dakar18 mm
Gibberula colombiana F. Boyer, 2003 Martinique5 mm
Gibberula columnella (A.R.J.B. Bavay in P. Dautzenberg, 1912) Angola3 mm
Gibberula compressa (C.F. Laseron, 1957) Northern Territory
Fulgerca compressilirata (FOSSIL) N.F. Sohl, 1964 † USA, Mississippi, Lee
Gibberula conejoensis T. McCleery, 2008 Venezuela2,5 mm
Gibberula confusa S. Gofas, 1989 Angola2 mm
Cystiscus connectans (W.L. May, 1911) Australia, Bass Strait3 mm
Plesiocystiscus consanguineus (E.A. Smith, 1890) Saint Helena
Cystiscus cooverti F. Boyer, 2003 New Caledonia1,4 mm
Persicula cordorae D. De Jong& H.E. Coomans, 1998 Curaçao Island6 mm
Persicula cornea (J.B.P.A. Lamarck, 1822) Gulf of Guinea
Crithe cossinea T. Cossignani, 1997 Philippines, Mactan Island2,2 mm